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Pentax K20D Outdoor Crops

15 Megapixels15 MegapixelsSingle Lens ReflexSingle Lens ReflexStabilization: Compensates for tiny involuntary movements of the camera.Stabilization: Compensates for tiny involuntary movements of the camera.Continuous DriveContinuous DriveManual Controls: Both fully-manual (M) and semi-automatic modes (T and V).Manual Controls: Both fully-manual (M) and semi-automatic modes (T and V).Custom White-Balance: Specifies exactly what should be white to the camera.Custom White-Balance: Specifies exactly what should be white to the camera.Action Photography: Shutter speeds of 1/1500 or more.Action Photography: Shutter speeds of 1/1500 or more.Night Photography: Reaches shutter-speeds longer than 4 seconds.Night Photography: Reaches shutter-speeds longer than 4 seconds.Hotshoe: Allows external flash units to be attached.Hotshoe: Allows external flash units to be attached.Spot MeteringSpot MeteringDepth-Of-Field Preview: Improve perception of DOF before shooting.Depth-Of-Field Preview: Improve perception of DOF before shooting.Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Accepts Secure Digital High Capacity (SDHC) and SD memory.Accepts Secure Digital High Capacity (SDHC) and SD memory.Neocamera detailed reviewNeocamera detailed reviewDiscontinued: No longer produced by the manufacturer. May still be in stock or found used.Discontinued: No longer produced by the manufacturer. May still be in stock or found used.

Outdoor Crops

Here the Pentax K20D was tested using the Pentax DA* 16-50 F2.8 lens. Images below show the performance of the Pentax K20D in a low-light situation at each ISO sensitivity. These are all 100% crops from full-resolution images taken at night using aperture priority, automatic white-balance and set ISO sensitivity.

Night shots are always the most difficult for any digital camera as noise is much more noticeable in dark areas and shadows. Since such scenes consist mostly of dark areas, they represent the worst cases of image noise. We can see that the K20D is not stellar in this area but manages to hold on to details reasonably well despite high noise levels at the higher ISO sensitivites. Up to ISO 400, image noise is very well controlled which results in highly usable images for large prints. At ISO 800, noise starts to appear but it is nothing to be alarmed with. Maximum print sizes have to be reduced starting at ISO 1600 due to loss of details. ISO 3200 is possibly usable for small prints, but ISO 6400 is not - at least not at these light levels. Note that all these images are taken with no image noise reduction applied. The Pentax K20D can apply noise reduction which does reduce noise but blurs the image in proportion to the noise reduction. This has no benefit on print sizes because the loss of noise is cancelled out by the loss of details.


ISO 100 - 8s F5.6

ISO 200 - 4s F5.6

ISO 400 - 2s F5.6

ISO 800 - 1s F5.6

ISO 1600 - 1/2s F5.6

ISO 3200 - 1/4s F5.6

ISO 6400 - 1/8s F5.6
Pentax K20D
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By on 2008/03/15
3

Pentax K20D Facts

SLR digital camera
15 Megapixels DSLRISO 100-6400
Pentax K Mount
1.5X FLM

Sensor-Size: 24 x 16mm

APS-C Sensor

Actual size when viewed at 100 DPI

Shutter 1/4000-30s
2-Axis Built-in StabilizationFull manual controls, including Manual Focus
95% Coverage
Large Viewfinder
Custom white-balance with 2 axis fine-tuning
WeatherproofSpot-Metering
Built-in Dust ReductionHot-Shoe & Sync-Port
3 FPS Drive, 38 ImagesLithium-Ion Battery
2.7" LCD 230K PixelsSecure Digital High Capacity
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